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Mccormick Mine

Past Producer in Tuolumne county in California, United States with commodities Chromium, Iron
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10190541
MAS/MILS ID 0061090009
Record type Site
Current site name Mccormick Mine
Alternate or previous names Terry and Sell Lease

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -120.5096, 37.87992 (WGS84)
Elevation 328
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

New Melones Dam(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Stanislaus(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Tuolumne

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001 S 013 E 02 NWNESW California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Magnesite Unknown
Magnetite Unknown
Manganite Unknown
Penninite Unknown
Serpentine Unknown
Talc Unknown

Nearby scientific data

Main Entrance (1) -120.5096, 37.87992
ListMap

Economic information

Ore body information

  • Strike N35W
    Dip 85E
    Thickness 2M
    Length 50M
    Width 61M
    Area 2HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Type of Wallrock Alter. #2 BLEACHING
    Strike And Dip N35W:85E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 2
    Date of Last Modification 830316

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1870
Year of first production 1870

Mining district

District name Chinese Camp Area

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Other

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Martin, Joseph W.
    Interest 100
    Home office California
    Year 1976
    First year 1975
  • Type Operator
    Owner Hemming, A. E. And A. M. - Last Operators
    Home office California
    Year 1976
    First year 1957
  • Type Operator
    Owner W. R. Williamson-Last Operator
    Home office California
    Year 1976
    First year 1957

Reserves and resources

  • Type In-situ
    Estimate year 1945
    Inferred 600mt ore
    Total resources 600mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 46.7 wt-pct Chromium Trace 1945

Reference information

Bibliographic references

  • Deposit

    U.S.B.M REPORT OF INVEST 4578 INVES OF THE MCCORMICK CHROME

  • Deposit

    49. CDM AND G BULL 134 PT 3,SLERRA NEVADA PP 21-23,1948,CAT

  • Deposit

    USBM WAR MINERALS INVEST NO.357, 1945,SHATTUCK,PP6-7.

  • Deposit

    COOPERATIVE WAR MINERAL INVEST INCAL.,UNPUBLISHED REPORT,191

  • Deposit

    CAL.STATE MINING BUREAU,BULL NO. 76,PP.215.

General comments

Subject category Comment text
Deposit NO MORE THAN 615 LONG TONS OF OREAVERAGING 46.7 PERCENT CR20 FT UNMINED.CITED FROM RECORD 702. MINE LAST WORKED IN 1957,144 LONGTONS OF MILLING GRADE ORE W UCED,53 LONG TONS SHIPPED. INADEQUATE RESOURCES FOR COST ANALYSIS. ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-MASSIVE 2 04.39,CR2O3 45.67,FEO 09.55,TOTAL FE 16.08,AL203 14.17,MGO CR/FE 2.50.DISSEMINATED ORE=S102 03.49,CR2O3 48.23,FEO 13.12 FE 16.08,AL203 14.17,MGO 15.75,CR/FE 2.64

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Wetzel, Nicholas U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.